Samuel swes



S. SWESEY.

Ore Mill.

No. 82,362. v Patented Sept. 22, 1868.

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Letters Patent No..'82,362, dated September 22, 1868.

IMPROVEMENT IN QUARTZ-MIILS.

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TO ALL WHOM IT'MAY CONCERN:

Be it known that'I, SAMUEL SWESEY, of Malta, in the county of Morgan, .and State of Ohio, have invented a new and useful Improvement in Quartz-Mill; and I do hereby declare that the following is a full, clear, and

exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

This invention relates/to a new and improved method of crushing and pulverizing quartz, for the purpose of separating the precious metals therefrom; and it consists in providing a suitable mill with grinding-stones, between which the quartz is subjected to a grinding process; and also in the manner in which the mill is constructed-and the upper grinding-stone is revolved and adjusted, as will be hereinafter more fully described.

I In carrying out my invention, I construct a frame, of suitable size and shape, for holding and supporting the grinding-stones and the parts connected therewith, which is made of substantial timbers, which are fastened together in any substantial manner.

In the drawing- Figure 1 represents a vertical section of the whole mill, showing the different parts properly arranged, as when-the mill is ready for use.

Figure 2 is a detailedview of the yoke which drives the upper grinding-stone.

Similar letters of reference indicate like parts.'

A represents. the frame by which the mill is supported. 7

B is the lower grinding-stone, which is fixed in its place. This stone may be furrowed similar to a common grinding-stone, or left smooth, as may be deemed best.

C is-the upper grinding-stone, which may be either smooth or furrowed on it's face, and which is revolved from above by a vertical shaft. l

D is the shaft.

E is a yoke, through which the shaft by which the stone is revolvedpasses.

The stone C is suspended from the shaft by swivel-connections, marked F in the drawing.

The shaft D is suspended from the collar 41, which rests on top of a double inclined plane, as seen in the drawing. These inclined planes are marked 0 and d. The lower part of 0 passes through the frame, and is shown in section at e. The upper inclined plane has a lever attached to it, marked f. The shoulder g of the lower inclined plane rests upon the frame, as seen. i

I The stones are adjusted, so that their grinding-faces are parallel, by the swivel-connections E, and by the screws 7;, to which the swivels are attached. The upper stone may be raised and lowered by the inclined planes, when operated by the leverf. v

J is the central orifice through the lipper stone.

K is the hopper.

The lower end of the shaft, where it passes through the yoke E, is square, as seen in section in fig. 2, which is a top view of theyoke. Through the yoke, and by each of the square sides of the shaft, there are apertures,

.2', through which the' water and substance to be pulverized pass from the hopper to, the lower grinding-stone.

The yoke E has toes, J, which enter cavities in the stone, as seen in the drawing.

.11 is a pulley, by which the shaft and stone are revolved from a'belt.

The products of the mill are discharged from the stones, and pass out through the spout m.

It will be seen 'that, by the swivel-joints, the faces of the stones can be accurately adjusted to each other, and that, by the double inclined plane, the distance of the stones from each other (or the fineness of the grinding) can be regulated as desired.

What I claim as new, and desire to. secure by Letters Patent, is-

1. suspending the stone 0 above the bed-stone by means of the swivelled connections F and screws it, in combination with the shaft D and stone 0, for the purpose of adjusting the grinding-face of the stone C parallelto the grinding-face of the bed-stone B, as herein shown and described, for the purpose specified.

2. The arrangement of the hopper K upon the yoke E, whereby said hopper is revolved with the stone G,-

as herein shown and described, for the purpose specified- SAMUEL SWESEY.

Witnesses:

Wu. F. McNiitrARs, ALEX. F. Rosanne. 

